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Giant Sloths the Size of Elephants Once Walked Along the Ground. Here's How the Massive Animals Evolved and Declined

Today, sloths are slow-moving, tree-dwelling creatures that live in Central and South America and can grow up to 2.5 feet long. Thousands of years ago, however, some sloths walked along the ground, ...
KSL

Have You Seen This? Mother sloth rescues fallen baby using rope

We've all seen videos of search and rescue crews hoisting injured hikers out of canyons on ropes dangling from a helicopter, ...
Gizmodo

Why Ancient Sloths Became the Size of Elephants—and Then Vanished

Giant sloths with razor-sharp claws and as large as Asian bull elephants once roamed the Earth, snacking on leaves at the tops of trees with a prehensile tongue. Now, scientists have figured out why ...
The Nature Network on MSN

Everything You Should Know About Sloths, The Tree-Dwelling Giants That Defy Logic And Gravity

Sloths aren’t just adorable, they’re actually pretty impressive, believe it or not. Some of the world’s biggest creatures ...
New Scientist

Giant ground sloths evolved three different times for the same reason

A cooling, drying climate turned sloths into giants – before humans potentially drove the huge animals to extinction. Today’s sloths are small, famously sluggish herbivores that move through the ...
AOL

The Incredible Reason Sloths Grow Algae on Their Fur

While humans wouldn’t be very happy to find that organisms were growing on their skin, particularly fungi, algae, and insects, it works out pretty well for sloths. Sloths may be hosting entire ...